add webdav server for easier file access

4 files changed, 442 insertions, 286 deletions

diff --git a/package-lock.json b/package-lock.json
index fb69dc2..8535c99 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -14,7 +14,7 @@
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       "resolved": "https://registry.npmjs.org/wrappy/-/wrappy-1.0.2.tgz",
@@ -1658,8 +1743,31 @@
       "integrity": "sha512-o3KqipXNUdS7wpQzBHSe180lBGO60SoK0yVo3CYJgb2MkobuWuBX6dhkYP5ORCLd55y+SaflMOV5fqAB53ux4w==",
       "dev": true,
       "requires": {
-        "options": "0.0.6",
-        "ultron": "1.0.2"
+        "options": ">=0.0.5",
+        "ultron": "1.0.x"
+      }
+    },
+    "xml-js": {
+      "version": "1.6.11",
+      "resolved": "https://registry.npmjs.org/xml-js/-/xml-js-1.6.11.tgz",
+      "integrity": "sha512-7rVi2KMfwfWFl+GpPg6m80IVMWXLRjO+PxTq7V2CDhoGak0wzYzFgUY2m4XJ47OGdXd8eLE8EmwfAmdjw7lC1g==",
+      "requires": {
+        "sax": "^1.2.4"
+      },
+      "dependencies": {
+        "sax": {
+          "version": "1.2.4",
+          "resolved": "https://registry.npmjs.org/sax/-/sax-1.2.4.tgz",
+          "integrity": "sha512-NqVDv9TpANUjFm0N8uM5GxL36UgKi9/atZw+x7YFnQ8ckwFGKrl4xX4yWtrey3UJm5nP1kUbnYgLopqWNSRhWw=="
+        }
+      }
+    },
+    "xml-js-builder": {
+      "version": "1.0.3",
+      "resolved": "https://registry.npmjs.org/xml-js-builder/-/xml-js-builder-1.0.3.tgz",
+      "integrity": "sha512-BoLgG/glT45M0jK5PGh9h+iGrQxa8jJk9ofR63GroRifl2tbGB3/yYiVY3wQWHrZgWWfl9+7fhEB/VoD9mWnSg==",
+      "requires": {
+        "xml-js": "^1.6.2"
       }
     },
     "xml2js": {
@@ -1668,8 +1776,8 @@
       "integrity": "sha1-MREBAAMAiuGSQOuhdJe1fHKcVV0=",
       "dev": true,
       "requires": {
-        "sax": "0.6.1",
-        "xmlbuilder": "9.0.4"
+        "sax": "0.6.x",
+        "xmlbuilder": ">=1.0.0"
       }
     },
     "xmlbuilder": {
diff --git a/package.json b/package.json
index 6f70436..0ec6b50 100644
--- a/package.json
+++ b/package.json
@@ -45,7 +45,8 @@
     "serve-index": "^1.9.1",
     "superagent": "^1.7.2",
     "underscore": "^1.8.3",
-    "uuid": "^3.2.1"
+    "uuid": "^3.2.1",
+    "webdav-server": "^2.4.6"
   },
   "devDependencies": {
     "expect.js": "^0.3.1",
diff --git a/server.js b/server.js
index cc644e6..ec123e9 100755
--- a/server.js
+++ b/server.js
@@ -2,7 +2,6 @@
 
 'use strict';
 
-
 var express = require('express'),
     morgan = require('morgan'),
     passport = require('passport'),
@@ -19,6 +18,7 @@ var express = require('express'),
     mkdirp = require('mkdirp'),
     auth = require('./src/auth.js'),
     serveIndex = require('serve-index'),
+    webdav = require('webdav-server').v2,
     files = require('./src/files.js')(path.resolve(__dirname, process.argv[2] || 'files'));
 
 
@@ -63,6 +63,15 @@ if (typeof config.folderListingEnabled === 'undefined') config.folderListingEnab
 var app = express();
 var router = new express.Router();
 
+var webdavServer = new webdav.WebDAVServer({
+    requireAuthentification: true,
+    httpAuthentication: new webdav.HTTPBasicAuthentication(new auth.WebdavUserManager(), 'Cloudron Surfer')
+});
+
+webdavServer.setFileSystem('/', new webdav.PhysicalFileSystem(ROOT_FOLDER), function (success) {
+    console.log(`Mounting ${ROOT_FOLDER} as webdav resource`, success);
+});
+
 var multipart = multipart({ maxFieldsSize: 2 * 1024, limit: '512mb', timeout: 3 * 60 * 1000 });
 
 router.post  ('/api/login', auth.login);
@@ -78,6 +87,7 @@ router.get   ('/api/healthcheck', function (req, res) { res.status(200).send();
 
 app.use(morgan('dev'));
 app.use(compression());
+app.use(webdav.extensions.express('/webdav', webdavServer));
 app.use('/api', bodyParser.json());
 app.use('/api', bodyParser.urlencoded({ extended: false, limit: '100mb' }));
 app.use('/api', cookieParser());
diff --git a/src/auth.js b/src/auth.js
index 093f297..67c2050 100644
--- a/src/auth.js
+++ b/src/auth.js
@@ -9,7 +9,8 @@ var passport = require('passport'),
     BearerStrategy = require('passport-http-bearer').Strategy,
     LdapStrategy = require('passport-ldapjs').Strategy,
     HttpError = require('connect-lastmile').HttpError,
-    HttpSuccess = require('connect-lastmile').HttpSuccess;
+    HttpSuccess = require('connect-lastmile').HttpSuccess,
+    webdavErrors = require('webdav-server').v2.Errors;
 
 const LOCAL_AUTH_FILE = path.resolve(process.env.LOCAL_AUTH_FILE || './.users.json');
 const TOKENSTORE_FILE = path.resolve(process.env.TOKENSTORE_FILE || './.tokens.json');
@@ -140,3 +141,39 @@ exports.logout = function (req, res, next) {
 exports.getProfile = function (req, res, next) {
     next(new HttpSuccess(200, { username: req.user.username }));
 };
+
+// webdav usermanager
+exports.WebdavUserManager = WebdavUserManager;
+
+// This implements the required interface only for the Basic Authentication for webdav-server
+function WebdavUserManager() {};
+
+WebdavUserManager.prototype.getDefaultUser = function (callback) {
+    // this is only a dummy user, since we always require authentication
+    var user = {
+        username: 'DefaultUser',
+        password: null,
+        isAdministrator: false,
+        isDefaultUser: true,
+        uid: 'DefaultUser'
+    };
+
+    callback(user);
+};
+
+WebdavUserManager.prototype.getUserByNamePassword = function (username, password, callback) {
+    var users = safe.JSON.parse(safe.fs.readFileSync(LOCAL_AUTH_FILE));
+    if (!users) return callback(webdavErrors.UserNotFound);
+    if (!users[username]) return callback(webdavErrors.UserNotFound);
+
+    bcrypt.compare(password, users[username].passwordHash, function (error, valid) {
+        if (error || !valid) return callback(webdavErrors.UserNotFound);
+
+        callback(null, {
+            username: username,
+            isAdministrator: true,
+            isDefaultUser: false,
+            uid: username
+        });
+    });
+};